"use strict";

const { spawn } = require('child_process');
const ls = spawn('ls', ['-lh', '/usr']);

ls.stdout.on('data', (data) => {
    console.log(`stdout:${data}`);
});

ls.stderr.on('data', (data) => {
    console.log(`stderr:${data}`);
});

ls.on('close', (code) => {
    console.log(`子进程退出码:${code}`);
})






